Redescription and molecular characterization of Crenidens macracanthus Günther, 1874 (Pisces: Sparidae), and first record of C. indicus Day, 1873 in the eastern Indian Ocean

Roul, Subal Kumar and Jeena, N S and Ghosh, Shubhadeep and Rohit, Prathibha (2020) Redescription and molecular characterization of Crenidens macracanthus Günther, 1874 (Pisces: Sparidae), and first record of C. indicus Day, 1873 in the eastern Indian Ocean. Journal of the Marine Biological Association of the United Kingdom. pp. 1-7.

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    Abstract

    Crenidens macracanthus was originally described in 1874 based on a single specimen collected from Chennai (Madras), south-east coast of India. In 1875, the species was synonymized with C. indicus without citing any valid reason. Since then, no taxonomic studies have been attempted for the genus Crenidens, except in 2013 the species was resurrected from synonymy and redescribed as a valid species based on the holotype and non-type specimen. In view of the fact that C. macracanthus is a poorly known species, it is redescribed based on examination of 30 additional specimens of 105.8–162.2mm SL, collected from Puri, Odisha, north-east coast of India (Bay of Bengal) from 2017–2019, using morphological and molecular examinations. Our study provides a detailed morphological description, first colour photographs and phylogenetic analysis using COI barcodes of the species. The study has expanded the range in several morpho-meristic characters in comparison with the type and non-type specimens described earlier. The species in fresh condition can be easily distinguished from its two congeners (C. crenidens and C. indicus) by the yellowish tip of the lower caudal-fin lobe. Our study has also extended the distribution range of C. indicus (previously known only from the north-eastern Arabian Sea) to the eastern Indian Ocean, based on examination of a preserved specimen collected from Tuticorin, Tamil Nadu.

    Item Type: Article
    Uncontrolled Keywords: Crenidens macracanthus; C. indicus; Sparidae; redescription; COI barcode; Indian Ocean
    Subjects: CMFRI Departments > CMFRI-Kochi > Marine Capture > Pelagic Fisheries
    CMFRI > CMFRI-Kochi > Marine Capture > Pelagic Fisheries
    CMFRI-Kochi > Marine Capture > Pelagic Fisheries
    CMFRI-Kochi > Marine Capture > Pelagic Fisheries

    Fish and Fisheries > Fish Genetics
    Fish and Fisheries
    Divisions: CMFRI-Puri FC
    Depositing User: Arun Surendran
    Date Deposited: 01 Nov 2020 07:07
    Last Modified: 01 Nov 2020 07:07
    URI: http://eprints.cmfri.org.in/id/eprint/14716

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